Definition of Excusable Delay/Force Majeure. Any delays caused (or to the extent caused) by the launch services provider or by Customer (including Customer’s failure to perform its obligations under this Contract), shall constitute an Excusable Delay under this Contract. Furthermore, any delay in the performance of the Work caused by an event which is beyond the control and without the fault or negligence of the Contractor, or its Subcontractors, such as acts of government (except where the governmental act or delay arises or results from an act or omission or delay by a Party hereto), war (whether declared or not), fire, flood, epidemic, quarantine restriction, or acts of God, and which delay could not have been avoided by the Contractor or Subcontractor through the exercise of reasonable foresight or reasonable precautions and could not be reasonably circumvented or mitigated by the Contractor or Subcontractor through use of alternative sources, work-around plans, or other means proposed by the Contractor subject to Customer approval, may constitute a basis for excusable delay (an “Excusable Delay”). Contractor shall provide notice thereof to Customer, in writing, promptly and in no event later than ten (10) Calendar Days after the Contractor shall have first learned of the possibility of an occurrence of such an event. Such notice reasonably promptly be supplemented by a detailed description of the portion of the Work affected by such a delay, as well as details of any potential work-around plans, alternative sources or other means the Contractor shall utilize to forestall a delay to Delivery as stated in [Article 7.0], Delivery. If such delay continues beyond a reasonable period, taking into account the Delivery Schedule and the need for Customer to meet regulatory deadlines, the Parties shall enter into good faith negotiations to develop a mutually agreeable course of action and mitigation plan. ​.